amass

1 to bring together in one body or place <amassed a truckload of donations in the course of their canned food drive> Synonyms accumulate, gather, assemble, bulk (up), collect, concentrate, congregate, constellate, corral, garner, group, lump, pick up, round upRelated Words ball, batch, bunch, cluster, huddle; heap, pile, stack; band, brigade, muster, raise, rally; flock, herd, hive, pack, press, swarm, throng; combine, connect, join, link, merge, pool, unite; archive, arrange, collate, compile, organize, systematize; scrape (up or together); re-collect, regather, regroupNear Antonyms break up, disband, disintegrate, dissolve, separate, sever, split (up); dismiss, sendAntonyms dispel, disperse, dissipate, scatter

2 to gradually form into a layer, pile, or mass <over the last month a huge mound of paperwork has amassed on my desk> Synonyms accrete, accumulate, collect, build up, concentrate, conglomerate, gather, mass, pile (up), stack (up)Related Words agglutinate, clump, lump; bank, drift, ridgeNear Antonyms disperse, dissipate, scatter